Down Comes A Tree

This task is about finding information and making inferences.
Read the article "Down Comes a Tree", pages 17-23 of Junior Journal 10.
 
a) The chart below shows some equipment the tree cutters used and what the equipment was used for. Fill in the gaps in the chart. 

Equipment What it is used for?
i) Ear-muffs   
ii)     Protecting the eyes from dust and sticks.
iii) Helmet  
iv)     Cutting off branches.
v)  Chipper   
vi)    Chewing up the stump.
 
b)
 
The writer says the grinder is like "a dog chewing on a big bone." In what way is the grinder like a dog chewing a bone?
 
 
 
 
 
c) 
Describe how a part of the chopped down tree will be used for something else.
 
 
 
 
 
d) 
How does the end of the article link with the beginning of the article?